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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.springframework.security.web.server.csrf</a></div>
<h2 title="Class CsrfWebFilter" class="title">Class CsrfWebFilter</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li>org.springframework.security.web.server.csrf.CsrfWebFilter</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code>org.springframework.web.server.WebFilter</code></dd>
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<pre>public class <span class="typeNameLabel">CsrfWebFilter</span>
extends java.lang.Object
implements org.springframework.web.server.WebFilter</pre>
<div class="block"><p>
Applies
<a href="https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)">CSRF</a>
protection using a synchronizer token pattern. Developers are required to ensure that
<a href="CsrfWebFilter.html" title="class in org.springframework.security.web.server.csrf"><code>CsrfWebFilter</code></a> is invoked for any request that allows state to change. Typically
this just means that they should ensure their web application follows proper REST
semantics (i.e. do not change state with the HTTP methods GET, HEAD, TRACE, OPTIONS).
</p>
<p>
Typically the <a href="ServerCsrfTokenRepository.html" title="interface in org.springframework.security.web.server.csrf"><code>ServerCsrfTokenRepository</code></a> implementation chooses to store the
<a href="CsrfToken.html" title="interface in org.springframework.security.web.server.csrf"><code>CsrfToken</code></a> in <code>WebSession</code> with
<a href="WebSessionServerCsrfTokenRepository.html" title="class in org.springframework.security.web.server.csrf"><code>WebSessionServerCsrfTokenRepository</code></a>. This is preferred to storing the token in
a cookie which can be modified by a client application.
</p>
<p>
The <code>Mono&amp;lt;CsrfToken&amp;gt;</code> is exposes as a request attribute with the name of
<code>CsrfToken.class.getName()</code>. If the token is new it will automatically be saved
at the time it is subscribed.
</p></div>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>5.0</dd>
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<td class="colFirst"><code>static <a href="../util/matcher/ServerWebExchangeMatcher.html" title="interface in org.springframework.security.web.server.util.matcher">ServerWebExchangeMatcher</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#DEFAULT_CSRF_MATCHER">DEFAULT_CSRF_MATCHER</a></span></code></th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#%3Cinit%3E()">CsrfWebFilter</a></span>()</code></th>
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<td class="colFirst"><code>reactor.core.publisher.Mono&lt;java.lang.Void&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#filter(org.springframework.web.server.ServerWebExchange,org.springframework.web.server.WebFilterChain)">filter</a></span>&#8203;(org.springframework.web.server.ServerWebExchange&nbsp;exchange,
org.springframework.web.server.WebFilterChain&nbsp;chain)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#setAccessDeniedHandler(org.springframework.security.web.server.authorization.ServerAccessDeniedHandler)">setAccessDeniedHandler</a></span>&#8203;(<a href="../authorization/ServerAccessDeniedHandler.html" title="interface in org.springframework.security.web.server.authorization">ServerAccessDeniedHandler</a>&nbsp;accessDeniedHandler)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#setCsrfTokenRepository(org.springframework.security.web.server.csrf.ServerCsrfTokenRepository)">setCsrfTokenRepository</a></span>&#8203;(<a href="ServerCsrfTokenRepository.html" title="interface in org.springframework.security.web.server.csrf">ServerCsrfTokenRepository</a>&nbsp;csrfTokenRepository)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#setRequireCsrfProtectionMatcher(org.springframework.security.web.server.util.matcher.ServerWebExchangeMatcher)">setRequireCsrfProtectionMatcher</a></span>&#8203;(<a href="../util/matcher/ServerWebExchangeMatcher.html" title="interface in org.springframework.security.web.server.util.matcher">ServerWebExchangeMatcher</a>&nbsp;requireCsrfProtectionMatcher)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#setTokenFromMultipartDataEnabled(boolean)">setTokenFromMultipartDataEnabled</a></span>&#8203;(boolean&nbsp;tokenFromMultipartDataEnabled)</code></th>
<td class="colLast">
<div class="block">Specifies if the <code>CsrfWebFilter</code> should try to resolve the actual CSRF token
from the body of multipart data requests.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="CsrfWebFilter.html#skipExchange(org.springframework.web.server.ServerWebExchange)">skipExchange</a></span>&#8203;(org.springframework.web.server.ServerWebExchange&nbsp;exchange)</code></th>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>DEFAULT_CSRF_MATCHER</h4>
<pre>public static final&nbsp;<a href="../util/matcher/ServerWebExchangeMatcher.html" title="interface in org.springframework.security.web.server.util.matcher">ServerWebExchangeMatcher</a> DEFAULT_CSRF_MATCHER</pre>
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<h4>CsrfWebFilter</h4>
<pre>public&nbsp;CsrfWebFilter()</pre>
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<h4>setAccessDeniedHandler</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;setAccessDeniedHandler&#8203;(<a href="../authorization/ServerAccessDeniedHandler.html" title="interface in org.springframework.security.web.server.authorization">ServerAccessDeniedHandler</a>&nbsp;accessDeniedHandler)</pre>
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<h4>setCsrfTokenRepository</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;setCsrfTokenRepository&#8203;(<a href="ServerCsrfTokenRepository.html" title="interface in org.springframework.security.web.server.csrf">ServerCsrfTokenRepository</a>&nbsp;csrfTokenRepository)</pre>
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<h4>setRequireCsrfProtectionMatcher</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;setRequireCsrfProtectionMatcher&#8203;(<a href="../util/matcher/ServerWebExchangeMatcher.html" title="interface in org.springframework.security.web.server.util.matcher">ServerWebExchangeMatcher</a>&nbsp;requireCsrfProtectionMatcher)</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;setTokenFromMultipartDataEnabled&#8203;(boolean&nbsp;tokenFromMultipartDataEnabled)</pre>
<div class="block">Specifies if the <code>CsrfWebFilter</code> should try to resolve the actual CSRF token
from the body of multipart data requests.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tokenFromMultipartDataEnabled</code> - true if should read from multipart form body,
else false. Default is false</dd>
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<a id="filter(org.springframework.web.server.ServerWebExchange,org.springframework.web.server.WebFilterChain)">

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<h4>filter</h4>
<pre class="methodSignature">public&nbsp;reactor.core.publisher.Mono&lt;java.lang.Void&gt;&nbsp;filter&#8203;(org.springframework.web.server.ServerWebExchange&nbsp;exchange,
                                                          org.springframework.web.server.WebFilterChain&nbsp;chain)</pre>
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<dd><code>filter</code>&nbsp;in interface&nbsp;<code>org.springframework.web.server.WebFilter</code></dd>
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<pre class="methodSignature">public static&nbsp;void&nbsp;skipExchange&#8203;(org.springframework.web.server.ServerWebExchange&nbsp;exchange)</pre>
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